@edge 20kN is not impressive at all A 100kg person jumping on your head is ~5kN force. I think the units should be "g", not "kN" since accelerometers were mentioned and 300g is a traditional benchmark thought to introduce permanent brain injury I believe (thinking back to some bicycle helmet tests I saw). Nevertheless, testing way below the Standard is indeed impressive

@edge 20kN is not impressive at all A 100kg person jumping on your head is ~5kN force. I think the units should be "g", not "kN" since accelerometers were mentioned and 300g is a traditional benchmark thought to introduce permanent brain injury I believe (thinking back to some bicycle helmet tests I saw)

Oops... I was confused, worked on the assumption you meant G not kN and then typed kN myself... d'oh night shift brain. @DorsetDan you're not wrong, 20kN would be approx the total impact force of the ball at test speeds.

This is a friggin awesome thread , good posts by all . Glad i have 2 masuris and my new fave ....adidas adizero /ayrtek. I will definitely buy another titanium/carbon ayrtek as soon as they are released. Ive made some cricket purchases i regret but I'm glad a Shrey helmet isn't one of them - particularly after today's innings . I hooked a bouncer for four , next ball was same delivery but ball stuck in the pitch a bit and the ball glanced off the back of the bat flush onto my helmet . Times like these you want to trust your safety gear is up to scratch .